/**
  ******************************************************************************
  * File Name          : main.c
  * Description        : Main program body
  ******************************************************************************
  *
  * COPYRIGHT(c) 2016 STMicroelectronics
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
  *   1. Redistributions of source code must retain the above copyright notice,
  *      this list of conditions and the following disclaimer.
  *   2. Redistributions in binary form must reproduce the above copyright notice,
  *      this list of conditions and the following disclaimer in the documentation
  *      and/or other materials provided with the distribution.
  *   3. Neither the name of STMicroelectronics nor the names of its contributors
  *      may be used to endorse or promote products derived from this software
  *      without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  ******************************************************************************
  */
/* Includes ------------------------------------------------------------------*/
#include "stm32f1xx_hal.h"
#include "cmsis_os.h"

/* USER CODE BEGIN Includes */
#include "gfx.h"
#include "SSD1306.h"
#include "ST7735.h"
extern void tft_init(void);
/* USER CODE END Includes */

/* Private variables ---------------------------------------------------------*/
CRC_HandleTypeDef hcrc;

SPI_HandleTypeDef hspi1;
DMA_HandleTypeDef hdma_spi1_tx;

UART_HandleTypeDef huart1;
DMA_HandleTypeDef hdma_usart1_tx;

osThreadId ClockPrinterHandle;

/* USER CODE BEGIN PV */
static __IO uint8_t hour;
static __IO uint8_t min;
static __IO uint8_t sec;
static __IO uint8_t msec;
static __IO uint8_t changed;
static __IO uint8_t running;
/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
void Error_Handler(void);
static void MX_GPIO_Init(void);
static void MX_DMA_Init(void);
static void MX_CRC_Init(void);
static void MX_SPI1_Init(void);
static void MX_USART1_UART_Init(void);
void TaskClock(void const * argument);

/* USER CODE BEGIN PFP */
/* Private function prototypes -----------------------------------------------*/

/* USER CODE END PFP */

/* USER CODE BEGIN 0 */
//int strlen(const char* str)
//{
//  int n = 0;
//  for(;str && *str; ++str, ++n);
//  return n;
//}


void print_string(const char* s)
{
    while(HAL_UART_Transmit_DMA(&huart1, (uint8_t*)s, strlen(s)) == HAL_BUSY);
}
/* USER CODE END 0 */

int main(void)
{

    /* USER CODE BEGIN 1 */
    running = 0;

    /* USER CODE END 1 */

    /* MCU Configuration----------------------------------------------------------*/

    /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
    HAL_Init();

    /* Configure the system clock */
    SystemClock_Config();

    /* Initialize all configured peripherals */
    MX_GPIO_Init();
    MX_DMA_Init();
    MX_CRC_Init();
    MX_SPI1_Init();
    MX_USART1_UART_Init();

    /* USER CODE BEGIN 2 */
    SSD1306_Init();
//	    SSD1306_DrawBitmap(0, 24, logo, 114, 17, SSD1306_COLOR_WHITE);
	SSD1306_DrawBitmap(20, 2, logo_BFTI, 86, 34, SSD1306_COLOR_WHITE);
	   SSD1306_GotoXY ( 50, 45 );
	   SSD1306_Puts ( "T12", &Font_11x18, SSD1306_COLOR_WHITE );

	
    SSD1306_UpdateScreen();

    /* USER CODE END 2 */

    /* USER CODE BEGIN RTOS_MUTEX */
    /* USER CODE END RTOS_MUTEX */

    /* USER CODE BEGIN RTOS_SEMAPHORES */
    /* add semaphores, ... */
    /* USER CODE END RTOS_SEMAPHORES */

    /* USER CODE BEGIN RTOS_TIMERS */
    /* start timers, add new ones, ... */
    /* USER CODE END RTOS_TIMERS */

    /* Create the thread(s) */
    /* definition and creation of Display */
    osThreadDef(ClockPrinter, TaskClock, osPriorityNormal, 0, 200);
    ClockPrinterHandle = osThreadCreate(osThread(ClockPrinter), NULL);

    /* USER CODE BEGIN RTOS_THREADS */
    /* add threads, ... */
    /* USER CODE END RTOS_THREADS */

    /* USER CODE BEGIN RTOS_QUEUES */
    /* add queues, ... */
    /* USER CODE END RTOS_QUEUES */


    /* Start scheduler */
    osKernelStart();

    /* We should never get here as control is now taken by the scheduler */

    /* Infinite loop */
    /* USER CODE BEGIN WHILE */
    while (1)
    {
        /* USER CODE END WHILE */

        /* USER CODE BEGIN 3 */

    }
    /* USER CODE END 3 */

}

/** System Clock Configuration
*/
void SystemClock_Config(void)
{

    RCC_OscInitTypeDef RCC_OscInitStruct;
    RCC_ClkInitTypeDef RCC_ClkInitStruct;

    RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
    RCC_OscInitStruct.HSIState = RCC_HSI_ON;
    RCC_OscInitStruct.HSICalibrationValue = 16;
    RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
    RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI_DIV2;
    RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL16;
    if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
    {
        Error_Handler();
    }

    RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK
                                  | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2;
    RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
    RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV2;
    RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
    RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
    if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
    {
        Error_Handler();
    }

    HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq() / 1000);

    HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);

    /* SysTick_IRQn interrupt configuration */
    HAL_NVIC_SetPriority(SysTick_IRQn, 15, 0);
}

/* CRC init function */
static void MX_CRC_Init(void)
{

    hcrc.Instance = CRC;
    if (HAL_CRC_Init(&hcrc) != HAL_OK)
    {
        Error_Handler();
    }

}

/* SPI1 init function */
static void MX_SPI1_Init(void)
{

    hspi1.Instance = SPI1;
    hspi1.Init.Mode = SPI_MODE_MASTER;
    hspi1.Init.Direction = SPI_DIRECTION_2LINES;
    hspi1.Init.DataSize = SPI_DATASIZE_8BIT;
    hspi1.Init.CLKPolarity = SPI_POLARITY_LOW;
    hspi1.Init.CLKPhase = SPI_PHASE_1EDGE;
    hspi1.Init.NSS = SPI_NSS_SOFT;
    hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_2;
    hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
    hspi1.Init.TIMode = SPI_TIMODE_DISABLE;
    hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
    hspi1.Init.CRCPolynomial = 10;
    if (HAL_SPI_Init(&hspi1) != HAL_OK)
    {
        Error_Handler();
    }

}

/* USART1 init function */
static void MX_USART1_UART_Init(void)
{

    huart1.Instance = USART1;
    huart1.Init.BaudRate = 9600;
    huart1.Init.WordLength = UART_WORDLENGTH_8B;
    huart1.Init.StopBits = UART_STOPBITS_1;
    huart1.Init.Parity = UART_PARITY_NONE;
    huart1.Init.Mode = UART_MODE_TX_RX;
    huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
    huart1.Init.OverSampling = UART_OVERSAMPLING_16;
    if (HAL_UART_Init(&huart1) != HAL_OK)
    {
        Error_Handler();
    }

}

/**
  * Enable DMA controller clock
  */
static void MX_DMA_Init(void)
{
    /* DMA controller clock enable */
    __HAL_RCC_DMA1_CLK_ENABLE();

    /* DMA interrupt init */
    /* DMA1_Channel3_IRQn interrupt configuration */
    HAL_NVIC_SetPriority(DMA1_Channel3_IRQn, 5, 0);
    HAL_NVIC_EnableIRQ(DMA1_Channel3_IRQn);
    /* DMA1_Channel4_IRQn interrupt configuration */
    HAL_NVIC_SetPriority(DMA1_Channel4_IRQn, 5, 0);
    HAL_NVIC_EnableIRQ(DMA1_Channel4_IRQn);

}

/** Configure pins as
        * Analog
        * Input
        * Output
        * EVENT_OUT
        * EXTI
        * Free pins are configured automatically as Analog (this feature is enabled through
        * the Code Generation settings)
*/
static void MX_GPIO_Init(void)
{

    GPIO_InitTypeDef GPIO_InitStruct;

    /* GPIO Ports Clock Enable */
    __HAL_RCC_GPIOC_CLK_ENABLE();
    __HAL_RCC_GPIOD_CLK_ENABLE();
    __HAL_RCC_GPIOA_CLK_ENABLE();
    __HAL_RCC_GPIOB_CLK_ENABLE();

    /*Configure GPIO pins : PC13 PC14 PC15 PC0
                             PC1 PC2 PC3 PC4
                             PC5 PC6 PC7 PC8
                             PC9 PC10 PC11 PC12 */
    GPIO_InitStruct.Pin = GPIO_PIN_13 | GPIO_PIN_14 | GPIO_PIN_15 | GPIO_PIN_0
                          | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3 | GPIO_PIN_4
                          | GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7 | GPIO_PIN_8
                          | GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_12;
    GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
    HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);

    /*Configure GPIO pins : PD0 PD1 PD2 */
    GPIO_InitStruct.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2;
    GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
    HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);

    /*Configure GPIO pins : PA0 PA1 PA2 PA3 PA4
                             PA6 PA8 PA11 PA12
                             PA13 PA14 PA15 */
    GPIO_InitStruct.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3 | GPIO_PIN_4
                          | GPIO_PIN_6 | GPIO_PIN_8 | GPIO_PIN_11 | GPIO_PIN_12
                          | GPIO_PIN_13 | GPIO_PIN_14;
    GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

    /*Configure GPIO pin : PA15 */
    GPIO_InitStruct.Pin = GPIO_PIN_15;
    GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

    /*Configure GPIO pins : PB0 PB1 PB2 PB10
                             PB11 PB12 PB13 PB14
                             PB15 PB3 PB4 PB5
                             PB6 PB7 PB8 PB9 */
    GPIO_InitStruct.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_10
                          | GPIO_PIN_11 | GPIO_PIN_12 | GPIO_PIN_13 | GPIO_PIN_14
                          | GPIO_PIN_15 | GPIO_PIN_3 | GPIO_PIN_4 | GPIO_PIN_5
                          | GPIO_PIN_6 | GPIO_PIN_7 | GPIO_PIN_8 | GPIO_PIN_9;
    GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
    HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);



    /*Configure GPIO pins : PC13 PC14 PC15 PC0
                          PC1 PC2 PC3 PC4
                          PC5 PC6 PC7 PC8
                          PC9 PC10 PC11 PC12 */
    GPIO_InitStruct.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3 | GPIO_PIN_4 ;

    GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
    GPIO_InitStruct.Pull = GPIO_PULLUP;
    HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);




    /*Configure peripheral I/O remapping */
    __HAL_AFIO_REMAP_PD01_ENABLE();

    /*Configure GPIO pin Output Level */
    HAL_GPIO_WritePin(GPIOA, GPIO_PIN_15, GPIO_PIN_RESET);

}

/* USER CODE BEGIN 4 */
const char* itoa(int16_t v, char* txt, int sz, int mindig)
{
    if (v)
    {
        int8_t isneg = v < 0 ? 1 : 0;
        char* s = &txt[sz - 1];
        *s = 0;
        s--;
        for(; v; v /= 10)
        {
            uint8_t res = v % 10;
            *s = res + '0';
            s--;
            mindig--;
        }
        for(int i = 0; i < mindig; i++)
        {
            *s = '0';
            --s;
        }
        if (isneg)
        {
            *s = '-';
            s--;
        }
        return s + 1;
    }
    else
    {
        for(int i = 0; i < mindig; i++)
            txt[i] = '0';
        txt[mindig] = 0;
    }
    return txt;
}
/* USER CODE END 4 */

/* TaskClock function */
void TaskClock(void const * argument)
{
    /* USER CODE BEGIN 5 */
   
    /* Infinite loop */
    for(;;)
    {
                 
    }
    /* USER CODE END 5 */
}

/**
  * @brief  Period elapsed callback in non blocking mode
  * @note   This function is called  when TIM1 interrupt took place, inside
  * HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
  * a global variable "uwTick" used as application time base.
  * @param  htim : TIM handle
  * @retval None
  */
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
    /* USER CODE BEGIN Callback 0 */

    /* USER CODE END Callback 0 */
    if (htim->Instance == TIM1)
    {
        HAL_IncTick();
        if (!running)
            return;
        if ((HAL_GetTick() % 100) == 0)
        {
            msec++;
            changed |= 1;
            if (msec == 10)
            {
                msec = 0;
                sec++;
                changed |= 2;
                if (sec == 60)
                {
                    sec = 0;
                    min++;
                    changed |= 4;
                    if (min == 60)
                    {
                        min = 0;
                        hour++;
                        changed |= 8;
                    }
                }
            }
        }
    }
    /* USER CODE BEGIN Callback 1 */

    /* USER CODE END Callback 1 */
}

/**
  * @brief  This function is executed in case of error occurrence.
  * @param  None
  * @retval None
  */
void Error_Handler(void)
{
    /* USER CODE BEGIN Error_Handler */
    /* User can add his own implementation to report the HAL error return state */
    while(1)
    {
    }
    /* USER CODE END Error_Handler */
}

#ifdef USE_FULL_ASSERT

/**
   * @brief Reports the name of the source file and the source line number
   * where the assert_param error has occurred.
   * @param file: pointer to the source file name
   * @param line: assert_param error line source number
   * @retval None
   */
void assert_failed(uint8_t* file, uint32_t line)
{
    /* USER CODE BEGIN 6 */
    /* User can add his own implementation to report the file name and line number,
      ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
    /* USER CODE END 6 */

}

#endif

/**
  * @}
  */

/**
  * @}
*/

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
